Foundry-riddle.



E. W. BEACH.

FOUNDRY RIDDLE.

APPLICATION FILED APR.16, 1914.

1,131,768. Patented Max:113, 1915.

"HE NORRIS PETERS 60., PHOTD-L/THOU WASHINGTON, D. C.

EDWARD WELLS BEACH, OF WATERBURY, CONNECTICUT.

FOUNDRY-RIDDLE.

Specification of Letters Patent.

Patented lillar. 16, 1915.

Application filed April 16, 1914. Serial No. 832,143.

To all whom it may concern Be it known that I, EDWARD XV. BEACH, acitizen of the United States, residing at WVaterbury, county of NewHaven, and State of Connecticut, have invented certain new and usefulImprovements in Foundry-Riddles; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such asw'll enable others skilled in the art to which it appertains to make anduse the same.

The present invention relates to riddles or sieves for the use offoundrymen in riddling sand and the like, and has for its object theprovision of an all metal riddle, light in weight and strong and rigidin construction, and well adapted to withstand the hard usage to whichsuch devices are subjected whether. used by hand or as parts of ashaking machine.

In the preferred embodiment of my invention, the riddle comprises asheet metal body suitably reinforced, and has av sieve disk attached tothe body in a very secure manner, but adapted for removal andreplacement after the wires of the screen have become worn or frayedthrough use. More particularly, the riddle of my invention has a wirescreen clamped at its edges between the inner and outer parts of adouble hoop with inturned flanges, whereby the hoop may be driven intoor out of a groove when the screen is to be renewed, this double hoopbeing attached in novel manner to the body of the riddle whereby it issecurely held in place and whereby a broad, comfortable hand-hold isprovided and other advantageous results attained, as will appear fromthe following detailed description and the accompanying drawings.

In the drawings, Figure 1 is a perspective view of the complete riddle;Fig. 2 is a section through the edge of the construction shown in Fig.1; Fig. 3 shows a modification in which the inner ring, whereby thesieve is heldin place, is made separate and bent up over the lowerreinforcing wire ring of the body of the riddle; and Fig. l shows adouble hoop which overlaps the edge of the wire screen before thelatterhas been bent down at its edge for introduction into the retaininggroove or socket, wherein it is held when in use.

The body 1 of the riddle is made of heavy sheet metal, preferably with awelded seam, and is of uniform diameter from top to bottom to permit theintroduction of the removable sieve. This body is reinforced towithstand twisting strains and heavy usage, the reinforcement includinga wire ring 2 around the top edge held in an outwardly turned bead 3. Asecond reinforcing wire ring 4: is positioned near the bottom of thebody and corrugations 5 are pressed into the wall of the body to give itgreater rigidity. Preferably these corrugations are disposed at an angleto the axis of the riddle and are formed in truss-like configuration. Byuse of the corrugations a stiff body is obtained, even though arelatively thin and light sheet metal is used.

At the bottom of the body and spaced therefrom, to form an annulargroove or socket of uniform width from top to bottom, is a resilientring 6 of sheet metal, the upper edge of which is doubled back on itselfand pressed down to form a reinforcement 7. The bottom edge of ring 6 isbent outward, as an annular flange 8 forming a broad, comfortablehand-hold, and then is bent up and around the lower reinforcing wirering f and is stiffened thereby. in the construction illustrated in Fig.2, this annular flange is integral with the main body of the riddle, butin Fig. 3 its upturned portion 9 overlaps a bead 10 of the body so thatin the latter construction the ring 6 can be made of a separate piece ofmetal, this being of some convenience in the processes of manufacture.

The removable sieve disk comprises a wire screen 11 of circular outlinehaving its edge gripped between the folds of a double hoop 12 made fromsheet metal folded over on itself to form an annular slot in which theedge of the disk is received. After the wire screen is in position, asshown in Fig. 4, the double hoop is bent inward to tighten its grip onthe edge of the screen and to bring it into position for insertionbetween ring 6 and the body of the riddle. This transverse bend in hoop12 is made far enough back from the edges of the metal to leave a pairof inwardly projecting flanges 13 and 14., serviceable to protect thebend in the screen, and also serving as projections whereby the sievedisk may be pounded into its groove or socket, or may be driventherefrom when a new disk is to be inserted. By inverting the riddle andpounding on flange 14; with a block of wood, it is easily possible todrive the sieve disk out through the body on flange 13 and drive "thedouble'lioop12 into its groove or socket. Preferably hoop 12 fitstightly in its socket, and ring 6 is made sufliciently resilientto-tightlylgrip thehoop after it is once'in place.

With the construction-above described. the

frame is so reinforced by the Wire rings held inthe beads, and bythecorrugations in the body, that practically no twisting 'or Warping takesplace even under severe use or abuse, and at the lower edge'of theriddle the'many thicknesses of 'nietal stiffen the'entire structure, andby preventing deforma tion-protect the wires of th'escree'n from- 1induestresses. The broad hand-hold at the lower edge makes the riddlecomfortable in the hands of foundrymen, and the inturned flanges 13 and1 11, in addition-to servinga's meanswhereby the sieve disk "may bedriven in 'or 'out, protect from wear those *partsof the screenWh-ichhave been bent and somewhat distorted-by the bending-of ring 19.Cross-wires under the screen are not=necessary with riddles of thisconstruct-ion, and their omission lengthens the life of the screen-byeliminating'the chafing and localizedwear ordinarily incident to the useof cross-wires.

:It is common infoundry practice to put a small iron disk in the riddlewith thesand and allow the-disk'to slide backand forth over-thescreenwhen the 'riddle -is in use. The diskserves to cut the sand and to keepthe mesh of the screenopen. vV'iththe pres ent construction thesidesorbody of the-ridd-l'e are protected from the impact and wear ofthis disk by the inturned annular flange '13. In time, the wires'of thescreen will Wear out and become broken, but the main portions of theriddle are relatiw' ely permanent and ordinarily will outlive a numberof screens,-'a1rd inasmuch asthe screens are "easily re'pla'ceable', thedevice as a whole is economical and in many respects superior to thewood-rimmed riddles which have been heretofore =s0 comlnonlyused, butWhichare now becoming difficult of production because of 'th'e scarcityof a suitable quality of lumber for the rims.

I- claim:

1: In affoundry riddle, the combinatio'n of a cylindrical sheet metalbody having a broad lower edge forming a comfortable hand-hold, aresilient ring spaced therefrom to form an annular socket, a wire screenfor said riddle bent downward around its edge, and a double hoopintegral throughout and formed of a-single metal sheet folded on itself,:said hoop gripping the edge of said screen'andfitting snuglybut'rem'ovably in said-socket, saidhoop having a pair of inwardlyprojecting flanges overlapping the bend 'in said screen and serviceableas shoulders for driving the hoop into and out of its socket when thescreen 1s to be renewed.

a sheet metal body, a resilient ring spaced therefrom to form an annularsocket of uniform Width from top to bottom, a hoop htting snugly in saidsocket and consistingof ametal sheetkfolded on itself, and a Wire 1 8.In a foundryriddle, the "combinationbf a cylindrical reinforced sheetmetal body, a resilient ri'ng within said body and secured thereto, saidring; forming a broad comforta ble'hand hol'd and beingspaced from thebody to forl'nanannu lar socket, and a sieve disk-comprising a- Wirescreen having its edge bent down *and gripped between the sides of afolded-sheet of metal forming a hoop,-'said 'h'oop fittingtightly insaidsocket and having a pair of inturned annular flanges "overlapping-thebend in the wire screen, and serving as exposed shoulders whereby saidhoop may be driven intoor out of its socket when the sieve diski'sbeingrenewed.

4.- :In afoundryriddle, the combination of a cylindrical --sheet -metalbody, reinforcements for said-body, a resilient'sheet metal ring- Withinsaid'b'ody and spaced therefrom to forr'n an annularso'cket of uniformwidth from top to bottom, said ring having-its lower edge bent outwardto form a wide hand-hold, and a sie-ve' diS'k comprising a wi're screenbordered-b a -metal rin-g, said ring fitting tightly -'in said socketbut being removable therefrom, and having an inturned flangeund'erlyinga portionof said screen whereby the =removal of-the ri'ng froin' itssocket *may be facilitated.

'5; In a foundry riddle, the coinbination of a sheetmietn body havingreinforcements, a sheet -1net-al ri'ng with-in said bo'cly and *spaced'therefrom to' form an annular ios socket,-a-nd having its lower edge*shaped 'to'forin a "broad handheld atwhich the riddlemay bejgripped by''the foundryman,

and asieve dislmomprising a Wire screen 'b'en t down around its-"edgeand gripped between the folds of a'd'ouble sheet 'metal ring,

said la'st named-ring being reniov'ably held betweenthe-resilient ringand'thebody of the" riddle, and having inturned annular flangesoverlapping the bend in the wire screen and serviceable fordriving thesieve I disk into-orout ofits position insaid socket.

6. In a foundryriddle, the combination of a cylindrical sheet metalbody, a reinforcing Wire'near tl'ie' bottoihof said body and h'eld' in abead thereof, a resilient sheet metal ring within-said body and spacedtherefrom to form an annular socket, the lower edge of said ring beingbent outward to form a broad hand-hold and overlapping the wireinclosing bead of said body, and a removable sieve disk fitting intosaid socket and yieldingly held between the riddle body and theresilient ring; substantially as described.

7. In a foundry riddle, the combination of a sheet metal body having atits lower edge a wire ring held in a head, a resilient sheet metal ringfitted within said body and spaced therefrom to form an annular socket,the lower edge of said annular ring being bent outward to form a broadhandhold and overlapping the wire inclosing bead of the riddle body togive a double thickness of metal over said wire, and a removable sievedisk having its edges held between the folds of a hoop, said hoop be ingseated in the socket between said resilient ring and the body of theriddle, and being removable therefrom when the sieve is to be renewed.

8. In a foundry riddle, the combination of a reinforced sheet metal bodyhaving near its lower edge a reinforcing wire ring, a resilient sheetmetal ring fitted within said body and spaced therefrom to form asocket, the lower portion of said ring being bent outward to form abroad hand-hold and being turned up over said wire ring forreinforcement thereby, and a removable sieve disk comprising a wirescreen gripped at its edges between the folds of a sheet metal hoop,said hoop being adapted to enter the socket between said annular ringand the body of the riddle and be gripped thereby to removably hold saidscreen in place.

9. In a foundry riddle, the combination of a sheet metal body of uniformdiameter from top to bottom and reinforced by a pair of wire rings heldin beads, a resilient ring having its toredge doubled back forreinforcement and having its lower edge bent outward, as an annularflange and turned upward over one of said reinforcing rings andaffording a broad hand-hold at the lower edge of the riddle, saidresilient ring being spaced from the body to form a socket, a doublehoop consisting of a single metal sheet folded on itself and a removablesieve disk consisting of wire mesh gripped at its edge between the foldsof said hoop, said hoop being adapted to slide down through said bodyand fit into the socket between the resilient ring and the lower portionof the riddle body and having inwardly projecting annular flanges lyingrespectively above and below the wire screen whereby the ring may bedriven into or out of its socket when renewals of the sieve disk are tobe made.

In testimony whereof I affix my signature, in presence of two witnesses.

EDWARD WELLS BEACH.

Witnesses:

ARTHUR R. HUSKER, EDWARD J. ZITZMANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

